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How to use BSIM-CMG models to build and simulate FinFET circuits

Ahmed Taha

Hi All,

I need to simulate FinFET based circuits

I have BSIM-CMG codes and models from www-device.eecs.berkeley.edu/.../

this includes veriloga files.va and files.include and model card.nmos files

I tried several methods to add these in Cadence, but still something missing 

so I am asking about the right way to add such files to enable circuit simualtion. 

 if any one managed to do this before, could help.

Thanks 

Parents
  • Andrew Beckett

    The key is not to use spectre from IC5141, but to use spectre from an MMSIM stream instead. IC5141 was released in 2004, and in late 2004 we took the decision to split the simulators into a separate stream. So even if you are using IC5141, you shouldn't be using spectre from IC5141 because we've had 10 major releases of MMSIM since then - you'd be using a 10 year old version of spectre otherwise. These newer MMSIM streams can be used together with IC5141, and bsimcmg has been built in to spectre for some time now.

    Doing this will be much simpler than trying to use VerilogA models in a very old version of spectre (which may have issues with the VerilogA used anyway).

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    The key is not to use spectre from IC5141, but to use spectre from an MMSIM stream instead. IC5141 was released in 2004, and in late 2004 we took the decision to split the simulators into a separate stream. So even if you are using IC5141, you shouldn't be using spectre from IC5141 because we've had 10 major releases of MMSIM since then - you'd be using a 10 year old version of spectre otherwise. These newer MMSIM streams can be used together with IC5141, and bsimcmg has been built in to spectre for some time now.

    Doing this will be much simpler than trying to use VerilogA models in a very old version of spectre (which may have issues with the VerilogA used anyway).

    Regards,

    Andrew.

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